重庆大学校园碳平衡研究

发布时间：2018-07-06 15:20

本文选题：重庆大学 + 能源结构　；参考：《重庆大学》2015年硕士论文

【摘要】：由碳排放引起的气候变化已成为全球关注的焦点,威胁着人类的生存环境。减少温室气体排放,特别是CO2的排放刻不容缓。中国正处于快速城市化和工业化阶段,能源消耗导致CO2排放快速增加,城市作为碳排放最主要来源,有着不可推卸的减排义务,而高校作为城市的重要组成部分,如何开展低碳校园建设来降低CO2的排放成为亟需解决的问题。开展校园碳平衡研究有助于分析校园的碳排放情况和植被在碳吸收过程中起到的作用,寻求低碳校园的建设路径。本文从能源碳排放及树木碳吸收角度探讨校园碳平衡,较系统的探讨了校园能源碳排放的特征,碳平衡的状况及植被在碳平衡过程中的作用及潜力。在此基础上,提出促进校园碳平衡的措施,为建设低碳校园提供理论支撑。研究结果表明:(1)重庆大学四个校区近4年来,校园年均能源碳排放总量为19784.67t,人均碳排放量为0.31t/y。(2)重庆大学校园的能源消费结构以电力为主,比例为42.38%,电力碳排放达到45118.7t,占总碳排放的76.6%。(3)校园教学楼、宿舍、食堂等典型建筑的碳排放量均呈现出明显的季节性波动,寒假的排放量要小于其他月份。(4)四个校区中D校区的碳储量最大,达到917.96t,最小的是C校区,仅有86.5t,B校区单位面积碳储量最大,达到10.1t/ha,最小的是D校区,为4.0t/ha,四个校区总的碳储量为1976.61t,树木年固碳总量为539.09t。(5)重庆大学校园树木年碳固定量仅占能源消耗碳排放的2.72%,校园处于严重的碳失衡状态。
[Abstract]:Climate change caused by carbon emissions has become the focus of global attention, threatening the human survival environment. It is urgent to reduce greenhouse gas emissions, especially CO2 emissions. China is in the stage of rapid urbanization and industrialization. Energy consumption leads to a rapid increase in CO2 emissions. As the most important source of carbon emissions, cities have an unshirkable obligation to reduce emissions, while colleges and universities are an important part of the city. How to carry out low-carbon campus construction to reduce CO2 emission has become an urgent problem. The study of carbon balance on campus is helpful to analyze the situation of carbon emission and the role of vegetation in the process of carbon sequestration, and to seek the construction path of low-carbon campus. This paper discusses the campus carbon balance from the perspective of energy carbon emission and tree carbon sequestration, and systematically discusses the characteristics of campus energy carbon emissions, the status of carbon balance and the role and potential of vegetation in the process of carbon balance. On this basis, the measures to promote the campus carbon balance are put forward to provide theoretical support for the construction of low-carbon campus. The results show that: (1) in the past four years, the total annual energy carbon emissions of the four campuses of Chongqing University are 19784.67 t, and the per capita carbon emissions are 0.31 t / y. (2) the energy consumption structure of Chongqing University campus is mainly electric power. The ratio is 42.38 and the carbon emissions from electric power reach 45118.7 t, accounting for 76.6T of total carbon emissions. (3) the carbon emissions of typical buildings, such as school buildings, dormitories, canteens, etc., show obvious seasonal fluctuations. The emissions of winter vacation are smaller than those of other months. (4) among the four campuses, campus D has the largest carbon storage, reaching 917.96 t, and campus C is the smallest, and only 86.5 tU B campus has the largest carbon storage per unit area, reaching 10.1 t / ha, and the smallest one is the D campus. The total carbon storage of the four campuses is 1976.61 t, and the total annual carbon sequestration of trees is 539.09 t. (5) the annual carbon sequestration of trees in the campus of Chongqing University is only 2.72% of the carbon emissions from energy consumption, and the campus is in a serious state of carbon imbalance.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X322

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